Covering up

Covering up

Getty Images

Petra Kvitova of the Czech Republic sits with a towel covering her head in her quarterfinal match against Vera Zvonareva of Russia during day ten of the 2011 Australian Open at Melbourne Park in Melbourne, Australia.

Petra Kvitova of the Czech Republic sits with a towel covering her head in her quarterfinal match against Vera Zvonareva of Russia during day ten of the 2011 Australian Open at Melbourne Park in Melbourne, Australia. (Getty Images)

Petra Kvitova of the Czech Republic sits with a towel covering her head in her quarterfinal match against Vera Zvonareva of Russia during day ten of the 2011 Australian Open at Melbourne Park in Melbourne, Australia.